Choose a collecting site from this list or click a site on the map. Select a collecting site Agate, Chert, Jasper, & Petrified Wood, Wayne Co. "Onyx" or Banded Calcite, Mt. Nebo Birdseye Marble Bixbyite, Rutile, & Amethyst Crystals, Piute Co. Geodes, Dugway Gypsum Sand, Knolls Obsidian, Black Rock Desert Oolitic Sand, Stansbury Island Smoky Quartz & Feldspar Crystals, Beaver Co. Sunstones, Sunstone Knoll Topaz, Topaz Mountain Wonderstone, Vernon Hills